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3 phosphoadenosine 5 phosphosulfate

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3'-phosphoadenosine-5'-phosphosulfate is a chemical compound used in various laboratory and research applications. It serves as a sulfate donor in enzymatic reactions.

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9 protocols using 3 phosphoadenosine 5 phosphosulfate

1

In Vitro Sulfation Assay for Xenobiotics

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6-OH-Mel, NAS and 4-OH-Ram were products of Toronto Research Chemicals (Toronto, Ontario, Canada). Adenosine 5’-triphosphate (ATP), 3’-phosphoadenosine 5’-phosphosulfate (PAPS), 2-morpholinoethanesulfonic acid (MES), N-2-hydroxylpiperazine-N’-2-ethanesulfonic acid (HEPES), 3-N-tris-hydroxymethyl methylamino-propanesulfonic acid (TAPS), 2-cyclohexylamino ethanesulfonic acid (CHES), 3-cyclohexylamino-1-propanesulfonic acid (CAPS), Trizma base, dithiothreitol (DTT), minimum essential medium (MEM), fetal bovine serum (FBS), penicillin G, streptomycin sulfate, and silica gel thin-layer chromatography (TLC) plates were from Sigma Chemical Company (St. Louis, MO, USA). Carrier-free sodium [35S]sulfate was from American Radiolabeled Chemicals, Inc. (St. Louis, MO, USA); and Ecolume scintillation cocktail was from MP Biomedicals (Irvine, CA, USA). Ultra free-MC 5000 NMWL filter units were products of Millipore Corporation (Bedford, MA, USA). HepG2 human hepatoma cells (ATCC HB-8065) and Caco-2 human colon adenocarcinoma cells (ATCC HTB-37) were obtained from American Type Culture Collection (Manassas, VA, USA). Pooled human lung, liver, small intestine, and kidney cytosols were purchased from XenoTech, LLC (Lenexa, KS, USA). All other chemicals used were of the highest grade commercially available.
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2

Reagents for Cell Culture Experiments

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Bradford assay reagent was purchased from Bio-Rad Laboratories, Inc. (Mississauga, ON, Canada). Alamethicin and UDP-glucuronic acid (UDPGA) were obtained from Corning Life Sciences (Tewkbury, MA, USA). Dulbecco’s Modified Eagle’s Medium (DMEM), F12/DMEM, fetal bovine serum (FBS), L-glutamine, N-2-hydroxyethylpiperazine-N′-2-ethanesulfonic acid (HEPES), penicillin–streptomycin (Pen-strep) solution, TryPLE Express, and trypsin [0.25% with EDTA (1 ×)] were obtained from Life Technologies Inc. (Burlington, ON, Canada). Docosahexaenoic acid (DHA) was purchased from Nu-Chek Prep Inc (Elysian, MN, USA). Human epidermal growth factor (EGF) was purchased from PeproTech (Rocky Hill, NJ, USA). NADPH was obtained from Roche Diagnostics (Laval, QC, Canada). Bovine insulin, bovine serum albumin (BSA), hydrocortisone, 3′-phosphoadenosine-5′-phosphosulfate (PAPS), phloridzin (PZ), quercetin, S-adenosylmethionine (SAM) were purchased from Sigma-Aldrich (Oakville, ON, Canada).
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3

Enzymatic Synthesis and Purification of ε-Viniferin

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ε-Viniferin was produced and purified in our laboratory (Unité de recherché Œnologie—EA 4577, Villenave d’Ornon, France). Pyridine, chlorosulfonic acid, acetobromo-glucuronic acid methyl-ester, sodium hydroxide (NaOH), uridine 5′-diphospho-glucuronic acid trisodium salt (UDPGA), alamethicin, 3′-phosphoadenosine-5′-phosphosulfate (PAPS), dithiothreitol (DTT), trifluoroacetic acid (TFA), formic acid (FA), and MgCl2 were purchased from Sigma-Aldrich (Saint-Quentin Fallavier, France). Human liver S9 and rat liver S9 fractions were purchased from Biopredic International (Saint-Grégoire, France). Acetonitrile and methanol were purchased from Thermo Fisher Scientific (Illkirch, France).
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4

Synthesis and Characterization of Raloxifene Metabolites

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Raloxifene hydrochloride, raloxifene-6-glucuronide, and raloxifene-4′-glucuronide were purchased from Toronto Research Chemicals (Toronto, Canada, all compounds purity ≥99%). Raloxifene-6-sulfate was synthesized in our laboratory using rat and mouse liver S9 fraction, the purity of R-6-S was over 95% by ultra-performance liquid chromatography-UV. 3′-Phosphoa-denosine-5′-phosphosulfate and sulfatase (without α-glucuronidase) were purchased from Sigma-Aldrich (St. Louis, MO). The MS grade water, methanol, and acetonitrile were obtained from EMD (Gibbstown, NJ, USA).
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5

Synthesis and Analysis of PAP[35S]

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E2 and 4OH-tamoxifen were products of Cayman Chemical Company (Ann Arbor, MI, USA). Diethylstilbestrol, adenosine 5’-triphosphate (ATP), dimethyl sulfoxide (DMSO), dithiothreitol (DTT), 3’-phosphoadenosine-5’-phosphosulfate (PAPS), isopropyl-1-thio-β-D-galactopyranoside (IPTG), and N-2-hydroxylpiperazine-N’-2-ethanesulfonic acid (HEPES) were from Sigma-Aldrich Chemical Company (St. Louis, MO, USA). Ecolume scintillation cocktail was obtained from MP Biomedicals (Solon, OH, USA). Carrier-free sodium [35S]sulfate was from American Radiolabeled Chemicals, Inc. (St. Louis, MO, USA). Recombinant human bifunctional ATP sulfulyase/adenosine 5’-phosphosulfate kinase was prepared as previously described [34 (link)], and used to synthesize PAP[35S] from ATP and [35S]sulfate based on an established procedure [34 (link)]. Cellulose thin-layer chromatography (TLC) plates were products of Macherey-Nagel (Düren, Germany). Dpn I was purchased from New England BioLabs (Ipswich, MA, USA). PrimeStar Max DNA polymerase was a product of Takara Bio Inc. (Mountain View, CA, USA). All blue prestained protein markers were obtained from BioLand Scientific LLC. (Paramount, CA, USA). Oligonucleotide primers were synthesized by Eurofins Genomics (Louisville, KY, USA). All other reagents and chemicals used were of the highest grades commercially available.
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6

Evaluation of DPP-4 Inhibitor Metabolism

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Saxagliptin, trelagliptin, and gemigliptin (Figure 1) were purchased from AdooQ Bioscience (>98%, Irvine, CA, USA); linagliptin and 5-hydroxySaxagliptin from Toronto Research Chemicals (Toronto, Canada); ammonium acetate (99.99%), β-nicotinamide adenine dinucleotide phosphate sodium salt hydrate (NADP+), dimethyl sulfoxide (DMSO, >99.7%), glucose-6-phosphate (G6P), glucose-6-phosphate dehydrogenase (G6PD), L-cysteine, magnesium chloride, reduced glutathione (GSH, ≥99%), 3′-phosphoadenosine-5′-phosphosulfate (PAPS), potassium phosphate, uridine diphosphate glucuronic acid (UDPGA, >98%), and vildagliptin from Sigma-Aldrich (St. Louis, MO, USA); and rat liver microsomes (RLM, R1000) from XenoTech (Lenexa, KS, USA). All solvents were LC-MS grade from Fisher Scientific (Pittsburgh, PA, USA).
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7

Radiochemical Assay for Estrogen Sulfotransferase

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EST activities were measured using a radiochemical extraction assay35 (link). 3′-Phosphoadenosine-5′-phosphosulfate was purchased from Sigma-Aldrich chemical company (St. Louis, MO), and 3H-estradiol (60 Ci/mmol) was purchased from PerkinElmer Life Sciences Inc. (Boston, MA). Incubation mixtures (0.5 ml) contained 100 mM Tris–HCl (pH 7.4), 5 mM MgCl2, 0.8 mg placental cytosolic protein, 20 μM PAPS, and 2 nM [3H] E2. The reaction was initiated with the addition of PAPS and continued for 30 minutes at 37 °C. The reaction mixture was extracted with 1 ml of dichloromethane and aliquot of the aqueous phase was counted by liquid scintillation counting.
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8

Chlorinated Paraffin Biotransformation Assessment

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Commercial SCCP mixtures (Cl degree: 55.5%), MCCP mixtures (Cl degree: 52%), and LCCP mixtures (Cl degree: 49%) were purchased from Dr. Ehrenstorfer (Augsburg, Germany). 13 C-BDE 209 was purchased from Wellington Laboratories Inc (Guelph, ON, Canada). Pooled human liver microsomes (HLM), pooled human liver cytosol (HLCYT), 2,6-uridinediphosphate glucuronic acid (UDPGA), alamethicin (neat, purity > 99%), 3'-phosphoadenosine-5'-phosphosulfate (PAPS; purity > 60%) lithium salt hydrate, nicotinamide adenine dinucleotide phosphate (NADPH; purity > 99%), and dimethyl sulfoxide (DMSO) were purchased from Sigma-Aldrich (Castle Hill, NSW, Australia). Ultrapure water was obtained from a Milli-Q system (Merck Millipore, MA, USA). Gas chromatography grade acetonitrile (ACN) was purchased from Merck (Darmstadt, Germany).
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9

Bisphenol A Bioactivation Assay

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Bisphenol A (>99%; CAS 80-05-7), BPA sulfate, sodium salt (95%, CAS 847696-37-1), BPF (98%; CAS 620-92-8), BPS (98%; CAS 80-09-1), dithiothreitol (98%; CAS 3483-12-3), resazurin, sodium salt (80%; CAS 62758-13-8), MgCl 2 (≥98%; CAS 7786-30-3), 3 ′ -phosphoadenosine-5 ′phosphosulfate, and dimethyl sulfoxide were all from Sigma-Aldrich (St. Louis, MO, USA). 17-β-Estradiol (E2; ≥98%; CAS 50-28-2), 17-α-estradiol (≥98%; CAS 57-91-0), corticosterone (≥98.5%; CAS 50-22-6), and kanamycin solution from Streptomyces kanamyceticus (10 mg/mL; CAS 25389-94-0) were from Sigma-Aldrich (Germany). Pooled human liver cytosol (total protein concentration, 20 mg/mL) was from Thermo Fisher Scientific (MA, USA). Methyltestosterone (>98%; CAS 58-18-4) was from Tokyo Chemical Industry (TCI Europe, Belgium). Methanol and acetonitrile were LC-MS grade.
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